I came across something that may be useful to students at home (or to you) Snapanda, the 21 Century Dictionary. Just touch any written English word as you see it on a page, poster, anywhere through your smartphone camera and Snapanda will give you the definition. Watch this user guide video that answers some common questions about how the app works.

Users can create custom lists of words to build their own vocabulary for easy access later. Looking to go to college soon? Snappanda boasts of "free access to their TOEIC® and TOEFL® high-frequency word lists."

Want to give it a try? It is FREE for Android and may be available for iOS soon. An iPhone beta version of SnaPanda is already under way.